U.S. patent application number 13/443476 was filed with the patent office on 2012-08-02 for adhesive tape dispenser.
Invention is credited to Chi-Tsai CHANG.
Application Number | 20120193389 13/443476 |
Document ID | / |
Family ID | 46576511 |
Filed Date | 2012-08-02 |
United States Patent
Application |
20120193389 |
Kind Code |
A1 |
CHANG; Chi-Tsai |
August 2, 2012 |
ADHESIVE TAPE DISPENSER
Abstract
An adhesive tape dispenser of the present invention includes a
housing and a tape holder. The housing has an opening and a pivot
axle disposed on the opening. The tape holder is received in the
housing and has a pivot hole to receive the pivot axle. The housing
and the tape holder have a limitation structure to enable the tape
holder to pivot between a closed position and an open position. The
housing has a pressing portion which is able to press the tape
holder to cancel limitation of the limitation structure, and then
the tape holder is able to pivot away from the opening freely to
facilitate the replacement of tape roll. Thereby, the adhesive tape
dispenser of the present invention can provide an easy way to
operate, and the replacement of tape roll becomes more
convenient.
Inventors: |
CHANG; Chi-Tsai; (Taichung
City, TW) |
Family ID: |
46576511 |
Appl. No.: |
13/443476 |
Filed: |
April 10, 2012 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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12416167 |
Apr 1, 2009 |
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13443476 |
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Current U.S.
Class: |
225/43 |
Current CPC
Class: |
B65H 35/0073 20130101;
Y10T 225/243 20150401; B26D 7/00 20130101; B26F 3/02 20130101; Y10T
225/295 20150401; B65H 35/0026 20130101 |
Class at
Publication: |
225/43 |
International
Class: |
B65H 35/07 20060101
B65H035/07 |
Claims
1. An adhesive tape dispenser, including: a housing, the housing
having a first wall, an opposite second wall, and a cavity between
the first and the second walls, the second wall having a sliding
axle protruding toward the cavity and a pressing portion which is
able to protrude toward the cavity, the housing having an opening
located between the first wall and the second wall, the housing
also having a pivot axle disposed at the opening, a longitudinal
direction of the pivot axle being perpendicular to the first and
the second walls, the pivot axle partitioning the opening into a
first opening and a second opening; a tape holder, being received
in the cavity and having a first face and a opposite second face,
the first face facing the first wall, the second face facing the
second wall, the first face having a tape axle, a longitudinal
direction of the tape axle being perpendicular to the first face,
the second face having a first limiting piece and a second limiting
piece, a sliding slot being defined between the first and the
second limiting pieces to enable the sliding axle to slide inside,
the first limiting piece having a fixed first end and a free second
end, the second limiting piece having a free third end and a fixed
fourth end, the first end corresponding to the third end
positioninally, the second end corresponding to the fourth end
positionally, the tape holder having a lateral face between the
first and the second faces, the lateral face having a pivot hole to
receive the pivot axle to enable the tape holder to pivot relative
to the housing, the lateral face having a pressing end and an
opposite cutting end, the pressing end being able to pivot toward
inside of the first opening, the cutting end being able to pivot
away from the second opening, a cutter being disposed at an end of
the cutting end; wherein the tape holder is able to pivot between a
closed position and an open position due to limitation of the
sliding slot to the sliding axle; wherein when the tape holder is
at the closed position, the lateral face covers the opening, the
tape holder is located in the cavity completely; wherein when the
tape holder is at the open position, the sliding axle abuts against
a blocking portion of the third end of the second limiting piece,
the pressing end enters the first opening, the cutting end leaves
the second opening; wherein when the tape holder is at the open
position and the pressing portion protrudes toward the cavity, the
third end of the second limiting piece is pressed by the pressing
portion to move toward the first wall of the housing, the sliding
axle is thereby not blocked by the blocking portion and is able to
leave the sliding slot to enable the cutting end to pivot away from
the second opening further.
2. The adhesive tape dispenser of claim 1, wherein the sliding slot
has a receiving portion at the second end of the first limiting
piece and the fourth end of the second limiting piece, a width of
the receiving portion is larger than widths of other parts except
the receiving portion of the sliding slot when the sliding axle is
located on the receiving portion, the sliding axle is able to press
the first and the second limiting pieces away from the sliding slot
to broaden the widths of the slot when the sliding axle moves
toward the first end of the first limiting piece and the third
limiting piece.
3. The adhesive tape dispenser of claim 1, wherein the cutter has a
saw-tooth edge.
4. The adhesive tape dispenser of claim 1, wherein the pressing
portion is an elastic piece which is able to protrude toward the
cavity.
5. The adhesive tape dispenser of claim 1, wherein the tape holder
is able to pivot to expose the tape axle outside of the second
opening.
6. The adhesive tape dispenser of claim 1, wherein the cutter
corresponds to an edge of the second opening positionally.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention is a continuation-in-part of
application Ser. No. 12/416,167, filed Apr. 1, 2009, the entire
contents of which are hereby incorporated by reference.
[0003] 2. Description of the Prior Art
[0004] Conventional adhesive tape dispenser are disclosed in
patents U.S. Pat. No. 2,709,049, U.S. Pat. No. 4,752,023, U.S. Pat.
No. 5,167,357, and U.S. Pat. No. 7,175062. This kind of tape
dispensers are disadvantageous that the adhesive face of tape
located between the blade and the tape axle is usually contaminated
by dust. Also, the blade is exposed outside directly to be possible
to hurt a user accidentally.
[0005] To solve the problem of exposedness of the blade and the
tape, a protection cover is usually disposed on the outside of the
blade to conceal the blade and the tape selectively, as disclosed
in patents U.S. Pat. No. 2,678,777, U.S. Pat. No. 2,924,365, U.S.
Pat. No. 3,034,691, and U.S. Pat. No. 4,262,835. However, the tape
dispenser with a protection cover is too complicated structurally,
and the protection cover hampers the operation. Furthermore, the
tape rolls of the tape dispensers mentioned above are difficult to
be replaced. More specifically, the tape dispenser has to be
disassembled before replacement of the tape roll. Although another
cover disposed on a lateral side to facilitate the replacement of
tape roll is disclosed in patent U.S. Pat. No. 5,133,980, it means
that manufacturers must manufacture two covers to conceal the blade
and to facilitate replacement of tape roll respectively. The cost
is increased, and also the appearance of the tape dispenser is
unattractive.
[0006] The present invention is, therefore, arisen to obviate or at
least mitigate the above mentioned disadvantages.
SUMMARY OF THE INVENTION
[0007] The main object of the present invention is to provide an
adhesive tape dispenser which is able to prevent the cutter from
hurting a user and to prevent the tape from contaminated, and
replacement of tape roll is easier.
[0008] To achieve the above and other objects, an adhesive tape
dispenser of the present invention includes a housing and a tape
holder.
[0009] The housing has a first wall, an opposite second wall, and a
cavity between the first and the second walls. The second wall has
a sliding axle protruding toward the cavity and a pressing portion
which is able to protrude toward the cavity. The housing forms an
opening between the first and the second walls, and a pivot axle is
disposed on the opening. The pivot axle partitions the opening into
a first opening and a second opening.
[0010] The tape holder is received in the cavity and has a first
face and an opposite second face. The first face faces the first
wall, and the second face faces the second wall. The first face has
a tape axle, and a longitudinal direction is perpendicular to the
first face. The second face has a first limiting piece and a second
limiting piece, and extending directions of the first and the
second limiting pieces are parallel to the second face. A sliding
slot is defined between the first and the second limiting pieces to
enable the sliding axle to slide inside. The first limiting piece
has a fixed first end and a free second end, and the second
limiting piece has a free third end and a fixed fourth end. The
first end corresponds to the third end positionally, and the second
end corresponds to the fourth end positionally. The tape holder has
a lateral face between the first face and the second face. The
lateral face has a pivot hole to receive the pivot axle to enable
the tape holder to pivot relative to the housing. The lateral face
has a pressing end and an opposite cutting end wherein the pressing
end is able to pivot toward inside of the first opening and the
cutting end is able to pivot away from the second opening. A
terminal end of the cutting end has a cutter.
[0011] Besides, the sliding slot has a receiving portion at the
second end of the first limiting piece and the fourth end of the
second limiting piece. When the sliding axle is located on the
receiving portion, a width of the receiving portion is larger than
widths of parts of the sliding slot except the receiving portion.
When the sliding axle moves toward the first end of the first
limiting piece and the third end of the second limiting piece, the
sliding axle is able to press the first and the second limiting
pieces away from the sliding slot to broaden the widths of the
sliding slot. Thereby, the sliding axle is able to be positioned at
any position in the sliding slot due to the clamping of the first
and the second limiting pieces.
[0012] Due to the limitation to the sliding axle by the sliding
slot, the tape holder is able to pivot between a closed position
and an open position. When the tape holder is at the closed
position, the opening is covered by the lateral face of the tape
holder. On the contrary, when the tape holder is at the open
position, the sliding axle abuts against a blocking portion of the
third end of the second limiting piece. At the same time, the
pressing end enters inside of the first opening, and the cutting
end is away from the second opening. When the tape holder is at the
open position and the pressing portion protrudes toward the cavity,
the third end of the second limiting piece moves toward the first
wall of the housing under the pressing of pressing portion. Hence,
the cutting end is able to pivot away from the second opening
further to expose the tape axle outside of the second opening.
[0013] Thereby, the adhesive tape dispenser of the present
invention can provide an easy way to operate. More specifically,
when the tape holder is at the closed position, the cutter can be
concealed to prevent from hurting a user, and the tape is also
concealed to prevent from being contaminated. On the other hand,
the tape holder is abele to pivot to at most the open position for
availability of the tape by the pressing the pressing end.
Moreover, when the tape holder is at the open position and the
pressing portion is pressed or pushed, the tape holder is able to
pivot away from the second opening further to expose the tape axle
outside of the second opening. Thus, replacement of tape can be
easily achieved without any disassembling step.
[0014] The present invention will become more obvious from the
following description when taken in connection with the
accompanying drawings, which show, for purpose of illustrations
only, the preferred embodiment(s) in accordance with the present
invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] FIGS. 1 and 2 are stereogram drawings showing an adhesive
tape dispenser of the present invention;
[0016] FIGS. 3 and 4 are breakdown drawings showing an adhesive
tape dispenser of the present invention;
[0017] FIG. 5 is a partial stereogram drawing showing a housing of
an adhesive tape dispenser of the present invention;
[0018] FIG. 6 is a stereogram drawing showing a tape holder of an
adhesive dispenser of the present invention;
[0019] FIGS. 7 to 10 are illustrations of operation of an adhesive
tape dispenser of the present invention;
[0020] FIG. 11 is a stereogram drawing showing an adhesive tape
dispenser of the present invention;
[0021] FIGS. 12 and 13 are illustrations of operation of an
adhesive tape dispenser of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0022] Please refer to FIG. 1 to FIG. 8 for a major embodiment of
the present invention. The adhesive tape dispenser of the present
embodiment includes a housing 1 and a tape holder 2.
[0023] The housing 1 has a first wall 11, an opposite second wall
12, and a cavity between the first wall 11 and the second wall 12.
The second wall 12 has a sliding axle 122 protruding toward the
cavity and a pressing portion 121 which is able to protrude toward
the cavity. More preferably, the pressing portion 121 is an elastic
piece. The housing 1 forms an opening 13 located between the first
wall 11 and the second wall 12. The housing also has pivot axle 14
disposed on the opening 13, and a longitudinal direction of the
pivot axle 14 is perpendicular to the first wall 11 and the second
wall 12. The pivot axle 14 partitions the opening 13 into a first
opening 131 and a second opening 132.
[0024] The tape holder 2 is received in the cavity and has a first
face and an opposite second face. The first face faces the first
wall 11, and the second face faces the second wall 12. The first
face has a tape axle 21 which has a longitudinal direction
perpendicular to the first face. The second face has a first
limiting piece 22 and a second limiting piece 23. A sliding slot 24
is defined between the first and the second limiting pieces 22,23
to enable the sliding axle 122 to slide inside. The first limiting
piece 22 has a fixed first end and a free second end, and the
second limiting piece 23 has a free third end and a fixed fourth
end. The first end corresponds to the third end positionally, and
the second end corresponds to the fourth end positionally. The tape
holder 2 has a lateral face 25, and the lateral face 25 has a pivot
hole 253 to receive the pivot axle 14 to enable the tape holder 2
to pivot relative to the housing 1. The lateral face 2 has a
pressing end 251 and an opposite cutting end 252. The pressing end
251 is able to pivot toward inside of the first opening 131, and
the cutting end 252 is able to pivot away from the second opening
132. The cutting end 252 has a cutter 2521 corresponding to an edge
of the second opening 132 away from the first opening 131
positionally. More preferably, the cutter 2521 has a saw-tooth
edge.
[0025] Please refer to FIG. 7 to FIG. 10 now, due to the limitation
to the sliding axle 122 by the sliding slot 24, the tape holder 2
is able to pivot between a closed position and an open position.
When the tape holder 2 is at the closed position, the lateral face
25 covers the opening 13, and the tape holder 2 is completely
located in the housing 1. Of course, the tape axle 21 and the
cutter 2521 are both concealed in the cavity, as shown in FIG. 7.
When the sliding axle 122 abuts against a blocking portion 231 of
the third end of the second limiting piece 23, the tape holder 2 is
at the open position. At the same time, the pressing end 251 enters
the inside of the first opening 131, and the cutting end 252 leaves
the second opening 132 outward. Thus, the cutter 2521 leaves the
cavity and is exposed outside of the housing 1, as shown in FIG. 8.
On the other hand, when the pressing portion 121 protrudes toward
the cavity, the third end of the second limiting piece 23 is pushed
to move toward the first wall 11 of the housing 1 by the pressing
portion 121. Hence, the sliding axle 122 is not blocked by the
blocking portion 231 and is able to leave the sliding slot 24.
Thus, the cutting end 252 is able to pivot away from the second
opening 132 further, and the tape axle 21 can leave the cavity to
be exposed outside of the housing 1, as shown in FIG. 9 and FIG.
10. In the major embodiment, the slot 24 has a receiving portion
241 at the second end of the first limiting piece 22 and the fourth
end of the second limiting piece 23. When the sliding axle 122 is
located on the receiving portion 241, a width of the receiving
portion 241 is larger than widths of parts of the slot 24 except
the receiving portion 241. When the sliding axle 122 moves toward
the first end of the first limiting piece 22 and the third end of
the second limiting piece 23, the sliding axle 122 is able to push
the first and the second limiting pieces 22,23 away from the slot
24 and to broaden the widths of the slot 24 to clamp and position
the sliding axle 122 at any position in the sliding slot 24.
[0026] Practical operations are shown in FIG. 7 to FIG. 13. First,
please refer to FIG. 7, when the tape holder 2 is at the closed
position, the cutter 2521 and tape on the tape axle 21 are located
in the cavity, and the opening 13 is completely covered by the
lateral face 25 to protect the tape from contamination. Moreover,
the sliding axle 122 is clamped by the first and the second
limiting pieces 22,23, so that the tape holder 2 won't pivot freely
without any operation by a user to keep staying at the closed
position. Now please refer to FIGS. 8, 11, and 13, when the
pressing end 251 is pushed by a user with fingers, the pressing end
251 pivots toward inside of the first opening 131, and the cutting
end 252 pivots away from the second opening outward. At the same
time, the tape holder 2 is at the open position, and the cutter
2521 and part of tape 31 are exposed outside of the cavity to be
available for using. Besides, the sliding axle 122 is blocked by
the blocking portion 231, so the cutting end 252 won't pivot away
from the second opening 132 further. Thereby, a user can hold the
housing 1 with one hand and reach the tape 31 with the other hand.
After using, a user can push the cutting end 252 to pivot toward
inside of the second opening 132, and then the tape holder can
return to the closed position. Referring to FIGS. 9, 10, and 12, if
a user need to replace the tape roll 3 with a new one, he can push
the pressing portion 121 to move the third end of the second
limiting piece 23 toward the first wall 11 of the housing 1. When a
distance between the blocking portion 231 and the first wall 11 is
smaller than a distance between a top end of the sliding axle 122
and the first wall 11, the sliding axle 122 is not blocked by the
blocking portion 231 and is able to leave the sliding slot 24.
Thus, the cutting end 252 can pivot away from the second opening
132 outward further, and then the tape axle 21 is exposed outside
of the housing 1 to be available for replacement of tape rolls.
After replacement, a user can push the cutting end 252 inward
toward the second opening 132. More preferably, a face toward the
second wall 12 of the third end of the second limiting piece 23 has
an incline 232, as shown in FIG. 4 and FIG. 6. Thus, the sliding
axle 122 can be guided into the sliding slot 24 by the incline 232,
and the tape holder 2 is able to return to the closed position.
[0027] To conclude, the adhesive tape dispenser of the present
invention is able to conceal the cutter and the tape to prevent
from danger and contamination. Also, the tape can be easily reached
by pressing the pressing end, and the tape holder won't pivot
freely between the open and the closed positions to cause
inconvenience. The most important is that the tape holder and the
housing don't have to be dissembled before replacement of tape
rolls. On the contrary, the tape axle can be exposed outside of the
housing to be available for replacement of tape rolls when the
pressing portion is pushed to release the sliding axle from the
sliding slot. After replacement, the tape holder can be pushed back
to the cavity easily. In brief, the adhesive tape dispenser of the
present invention is easy for using, has a simple structure, and is
also low-cost.
* * * * *